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Flat Rock, OH
Census-designated place in Seneca County, Ohio. ZIP codes: 44828.
Population
340
Land area
0.2sq mi
People per sq mi
1,601
ZIP codes
1
Flat Rock and its ZIP codes
Flat Rock at a glance
- Flat Rock is about 5.5 times as dense as Ohio as a whole.
Local data for Flat Rock, OH
Counts from official public data
Economy and federal money
Jobs, pay, income and spending are for Seneca County. PPP loans are for Flat Rock.
Unemployment rate
3.4%
Aug 2026, -1.1 pts in a year
Average annual pay
$51,007
18,700 jobs, 2025
Income per person
$52,061
BEA, 2024
Federal spending
$413M
FY 2026, $7,503 per person
PPP loans
$1.31M
8 loans, 152 jobs reported
Environment and hazard risk
Flat Rock, OH, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: hail
Storm events since 1996
464
Countywide, mostly thunderstorm wind
Flood insurance policies
65
0.3% of homes, county
July high / Jan low
83° / 19°F
40.1 inches of rain a year
Health statistics
Share of adults in Flat Rock, OH, CDC PLACES estimates
Obesity
36.2%
U.S. 33.3% +2.9 pts
Diabetes
11.8%
U.S. 12.1% about the same
Smoking
16.6%
U.S. 12.8% +3.8 pts
Uninsured (18-64)
8.4%
U.S. 11.1% -2.7 pts
ZIP codes in Flat Rock
1 in or overlapping Flat Rock. Population shown
Cities near Flat Rock
| Name | Distance | Land area (sq mi) |
|---|---|---|
| BellevueCity | 2.7 mi | 6.1 |
| ClydeCity | 7.6 mi | 5.2 |
| MonroevilleVillage | 8.1 mi | 1.4 |
| Green SpringsVillage | 10 mi | 1.2 |
| VickeryCensus-designated place | 10 mi | 0.4 |
| BloomingvilleCensus-designated place | 11 mi | 1.3 |
| RepublicVillage | 12 mi | 0.9 |
| CastaliaVillage | 12 mi | 1 |
| Holiday LakesCensus-designated place | 12 mi | 1.7 |
| AtticaVillage | 12 mi | 0.7 |
| NorwalkCity | 13 mi | 8.9 |
| Whites LandingCensus-designated place | 13 mi | 0.3 |
| MilanVillage | 14 mi | 1.2 |
| Crystal RockCensus-designated place | 14 mi | 0.1 |
| WillardCity | 15 mi | 3.6 |
| BallvilleCensus-designated place | 15 mi | 4.5 |
Frequently asked questions
- What county is Flat Rock, OH in?
- Flat Rock is in Seneca County, Ohio.
- What ZIP codes are in Flat Rock, OH?
- ZIP codes in or overlapping Flat Rock include 44828.
- What is the population of Flat Rock, OH?
- About 340 people live in Flat Rock, based on American Community Survey 5-year estimates.
- What cities are near Flat Rock?
- Nearby places include Bellevue (2.7 mi), Clyde (7.6 mi), Monroeville (8.1 mi), Green Springs (10 mi), Vickery (10 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023